# Service bulletin PIP5628G A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 10242298 - Published by NHTSA: 2023\-09\-18 - Manufacturer's number: PIP5628G - Manufacturer's date: 2023\-08\-10 - NHTSA component: ENGINE ## NHTSA's summary This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 \- P0308 and/or P050D ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10242298-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10242298-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Engine ## Trouble codes named P0300, P0308, P050D ## Vehicles listed - 2006 BUICK ALLURE - 2016 to 2019 BUICK CASCADA - 2000 to 2005 BUICK CENTURY - 2008 to 2022 BUICK ENCLAVE - 2013 to 2022 BUICK ENCORE - 2016 to 2022 BUICK ENVISION - 2005 to 2019 BUICK LACROSSE - 2000 to 2005 BUICK LESABRE - 2006 to 2011 BUICK LUCERNE - 2000 to 2005 BUICK PARK AVENUE - 2004 to 2007 BUICK RAINIER - 2000 to 2004 BUICK REGAL - 2011 to 2020 BUICK REGAL - 2002 to 2007 BUICK RENDEZVOUS - 2005 to 2007 BUICK TERRAZA - 2012 to 2017 BUICK VERANO - 2013 to 2019 CADILLAC ATS - 2020 to 2022 CADILLAC CT4 - 2020 to 2022 CADILLAC CT5 - 2016 to 2020 CADILLAC CT6 - 2003 to 2019 CADILLAC CTS - 2000 to 2005 CADILLAC DEVILLE - 2006 to 2011 CADILLAC DTS - 2000 to 2002 CADILLAC ELDORADO - 2014 to 2016 CADILLAC ELR - 2000 CADILLAC ESCALADE - 2002 to 2020 CADILLAC ESCALADE - 2022 CADILLAC ESCALADE - 2003 to 2010 CADILLAC ESCALADE ESV - 2012 CADILLAC ESCALADE ESV - 2016 CADILLAC ESCALADE ESV - 2018 to 2019 CADILLAC ESCALADE ESV - 2021 CADILLAC ESCALADE NA - 2000 to 2004 CADILLAC SEVILLE - 2004 to 2016 CADILLAC SRX - 2005 to 2011 CADILLAC STS - 2004 to 2009 CADILLAC XLR - 2019 to 2022 CADILLAC XT4 - 2017 to 2022 CADILLAC XT5 - 2020 to 2022 CADILLAC XT6 - 2013 to 2019 CADILLAC XTS - 2000 to 2005 CHEVROLET ASTRO - 2007 to 2013 CHEVROLET AVALANCHE - 2002 to 2006 CHEVROLET AVALANCHE 1500 - 2000 to 2005 CHEVROLET BLAZER - 2019 to 2022 CHEVROLET BLAZER - 2017 to 2022 CHEVROLET BOLT EV - 2000 to 2002 CHEVROLET CAMARO - 2010 to 2022 CHEVROLET CAMARO - 2012 to 2015 CHEVROLET CAPRICE - 2011 to 2015 CHEVROLET CAPTIVA - 2012 CHEVROLET CAPTIVA SPORT - 2000 to 2005 CHEVROLET CAVALIER - 2014 to 2017 CHEVROLET CHEVEROLET SS - 2015 CHEVROLET CITY EXPRESS - 2005 to 2010 CHEVROLET COBALT - 2004 to 2012 CHEVROLET COLORADO - 2015 to 2022 CHEVROLET COLORADO - 2000 to 2020 CHEVROLET CORVETTE - 2011 to 2019 CHEVROLET CRUZE - 2005 to 2022 CHEVROLET EQUINOX - 2000 to 2021 CHEVROLET EXPRESS - 2012 CHEVROLET EXPRESS 1500 - 2014 CHEVROLET EXPRESS 1500 - 2014 CHEVROLET EXPRESS 2500 - 2012 CHEVROLET EXPRESS 3500 - 2014 CHEVROLET EXPRESS 3500 - 2012 CHEVROLET EXPRESS 4500 - 2016 CHEVROLET EXPRESS 4500 - 2017 CHEVROLET EXPRESS CUTAWAY VAN - 2006 to 2011 CHEVROLET HHR - 2000 to 2020 CHEVROLET IMPALA - 2000 to 2001 CHEVROLET LUMINA - 2000 to 2022 CHEVROLET MALIBU - 2000 to 2001 CHEVROLET METRO - 2000 to 2007 CHEVROLET MONTE CARLO - 2000 CHEVROLET P SERIES - 2000 to 2002 CHEVROLET PRIZM - 2000 to 2004 CHEVROLET S10 - 2000 to 2014 CHEVROLET SILVERADO 1500 - 2017 to 2019 CHEVROLET SILVERADO 1500 - 2021 CHEVROLET SILVERADO 1500 - 2012 to 2020 CHEVROLET SILVERADO 2500 - 2022 CHEVROLET SILVERADO 2500 - 2012 to 2015 CHEVROLET SILVERADO 3500 - 2012 to 2020 CHEVROLET SONIC - 2013 to 2021 CHEVROLET SPARK - 2003 to 2006 CHEVROLET SSR - 2000 to 2022 CHEVROLET SUBURBAN - 2000 to 2022 CHEVROLET TAHOE - 2000 to 2004 CHEVROLET TRACKER - 2002 to 2009 CHEVROLET TRAILBLAZER - 2019 CHEVROLET TRAILBLAZER - 2021 to 2022 CHEVROLET TRAILBLAZER - 2009 to 2022 CHEVROLET TRAVERSE - 2013 to 2022 CHEVROLET TRAX - 2005 to 2009 CHEVROLET UPLANDER - 2000 to 2005 CHEVROLET VENTURE - 2011 to 2019 CHEVROLET VOLT - 2007 to 2022 GMC ACADIA - 2004 to 2012 GMC CANYON - 2015 to 2022 GMC CANYON - 2000 GMC ENVOY - 2002 to 2009 GMC ENVOY - 2000 to 2001 GMC JIMMY - 2005 GMC JIMMY CLASSIC - 2000 to 2005 GMC SAFARI - 2000 to 2022 GMC SAVANA - 2012 GMC SAVANA 2500 - 2012 GMC SAVANA 3500 - 2006 to 2010 GMC SIERRA 1500 - 2012 to 2014 GMC SIERRA 1500 - 2017 to 2019 GMC SIERRA 1500 - 2021 to 2022 GMC SIERRA 1500 - 2000 GMC SIERRA 2500 - 2003 to 2005 GMC SIERRA 2500 - 2012 GMC SIERRA 2500 - 2015 to 2016 GMC SIERRA 2500 - 2020 GMC SIERRA 2500 - 2001 to 2002 GMC SIERRA 3500 - 2011 to 2012 GMC SIERRA 3500 - 2000 to 2004 GMC SONOMA - 2000 GMC SUBURBAN - 2010 to 2021 GMC TERRAIN - 2022 GMC TERRAIN NA - 2000 to 2022 GMC YUKON - 2003 to 2009 HUMMER H2 - 2006 to 2010 HUMMER H3 - 2000 to 2004 OLDSMOBILE ALERO - 2000 OLDSMOBILE AURORA - 2001 to 2003 OLDSMOBILE AURORA - 2000 to 2004 OLDSMOBILE BRAVADA - 2000 to 2002 OLDSMOBILE INTRIGUE - 2000 to 2004 OLDSMOBILE SILHOUETTE - 2001 to 2005 PONTIAC AZTEK - 2000 to 2005 PONTIAC BONNEVILLE - 2000 to 2002 PONTIAC FIREBIRD - 2009 PONTIAC G3 - 2006 PONTIAC G4 - 2007 to 2010 PONTIAC G5 - 2005 to 2010 PONTIAC G6 - 2000 to 2005 PONTIAC GRAND AM - 2000 to 2008 PONTIAC GRAND PRIX - 2000 to 2004 PONTIAC MONTANA - 2005 to 2008 PONTIAC MONTANA - 2006 to 2010 PONTIAC SOLSTICE - 2000 to 2005 PONTIAC SUNFIRE - 2006 to 2009 PONTIAC TORRENT - 2003 to 2010 PONTIAC VIBE - 2007 to 2010 SATURN AURA - 2003 to 2007 SATURN ION - 2007 to 2010 SATURN OUTLOOK - 2005 to 2007 SATURN RELAY - 2007 to 2010 SATURN SKY - 2002 to 2010 SATURN VUE ## Recalls for the same vehicles and component - [2025225](/recalls/tc/2025225.md), 2025-04-24: Engine - [25V274000](/recalls/nhtsa/25V274000.md), 2025-04-24: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL - [2019449](/recalls/tc/2019449.md), 2019-09-06: Engine - [19V642000](/recalls/nhtsa/19V642000.md), 2019-09-06: ENGINE; ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS - [16V868000](/recalls/nhtsa/16V868000.md), 2016-12-02: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN - [15V701000](/recalls/nhtsa/15V701000.md), 2015-10-26: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:ENGINE - [2015501](/recalls/tc/2015501.md), 2015-10-23: Engine - [15V201000](/recalls/nhtsa/15V201000.md), 2015-04-06: ENGINE AND ENGINE COOLING:ENGINE - [2015145](/recalls/tc/2015145.md), 2015-04-02: Engine - [2014577](/recalls/tc/2014577.md), 2014-12-18: Engine ## Other bulletins for the same vehicles and component - [N262552620](/bulletins/11032588.md), 2026-05-11, Service campaign: ENGINE. Certain vehicles may have a condition that could cause the cylinder 2 glow plug to fail. If this failure occurs, the Malfunction Indicator Light \(Check Engine Light\) will illuminate and a diagnostic trouble code will set. This special coverage covers the condition described above for a period of 15 years or 150,000 miles \(240,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 11, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 11, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the cylinder 2 glow plug as necessary. The repairs will be made at no charge to the customer. - [N252494003\-02](/bulletins/11027714.md), 2026-01-21, Service campaign: ENGINE. Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles \(240,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer. - [00\-06\-01\-026R](/bulletins/11026017.md), 2025-12-03, Service bulletin: ENGINE. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. - [25\-NA\-339](/bulletins/11025492.md), 2025-11-12, Service bulletin: ENGINE. Under Field Actions N252494000, N252494001, the service procedure includes performing a PICO test on vehicle engines within the identified suspect VIN population. If the engine passes the PICO test, the engine oil will be changed from 0W20 to Mobil 1 Supercar 0W40 dexosR. From that point forward, the engine must use 0W40 dexosR oil products for all future oil change services. - [N252508360](/bulletins/11024775.md), 2025-11-03, Warranty extension: ENGINE. Special Coverage. Certain vehicles listed above may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp \(Check Engine Light\) will illuminate, and a diagnostic trouble code will set. Additionally, a message may be displayed indicating the vehicle’s available engine power is reduced. This special coverage covers the condition described above for a period of 15 years or 150,000 miles \(240,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 3, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 3, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the turbocharger as necessary. The repairs will be made at no charge to the customer. - [23\-NA\-170](/bulletins/11024486.md), 2025-10-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure. - [23\-NA\-153](/bulletins/11024485.md), 2025-10-25, Service bulletin: ENGINE. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay. - [N252508350](/bulletins/11024390.md), 2025-10-21, Service campaign: ENGINE. Certain vehicles listed above, may have a condition that could cause the engine coolant thermostat to open at a lower temperature than intended. If this condition were to occur, the Malfunction Indicator Lamp \(Check Engine Light\) will illuminate and a diagnostic trouble code will set. Additionally in some cases, the engine cooling fans may run after the engine is switched off. This special coverage covers the condition described above for a period of 15 years or 150,000 miles \(240,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 21, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to October 21, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine coolant thermostat as necessary. The repairs will be made at no charge to the customer. - [22\-NA\-080](/bulletins/11024330.md), 2025-10-16, Service bulletin: ENGINE. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. - [N252508341](/bulletins/11023152.md), 2025-09-16, Service campaign: ENGINE. Certain vehicles listed above, may have a condition that could cause the engine coolant control valve to fail an onboard vehicle diagnostic test. If this condition were to occur, the Malfunction Indicator Lamp \(Check Engine Light\) will illuminate, and a diagnostic trouble code will set. Additionally in some cases, the engine cooling fans may run after the engine is switched off. Dealers are to replace the engine coolant control valve as necessary. The repairs will be made at no charge to the customer. 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